Jig



Oct. 11, 1938. J. A. SK-OGSBERG JIG Filed Nov. 9, 1936 2 Sheets-Sheet 1 Z JOHN aazoqssasa Oct. 11, 1938.

J. A. SKOGSBERG JIG Filed Nov. 9, 1936 v 2 Sheets-Sheet 2 Patented Oct. 1 1, 1938 JIG John A. Skogsberg, Worcester, Mass, assignor to TheAmericanSteel and Wire Company of New Jersey, a corporation of New Jersey Application November 9, 1936, Serial No. 109,971 4 Claims (01. 29-89) This invention relates to jigs and'more particularly to a jig for assembling the component parts of rolling-mill guides.

It is one of the objects of the present invenmill guidedevices which will effect a substantial 1: tion to provide a novel jig for assembling rolling-' saving in the amount of time usually required 'to assemble and install guides in a rolling-mill.

Another object is the provision of a deviceof the class described which may be easily and cheaply manufactured and used in 'connection with guide devices of existing design.

The foregoing and other objects will become apparent after referring to the accompanying drawings, in which:

Figure 1 is a plan of apreferred embodiment of the device of the present invention;

Figure 2 is a side elevation of the device of Figure 1;

Figure 3 is a sectional view on the line IIIIII of Figure 2; and

Figure lis an elevation, partly in section, illustrating the manner in which the guide devices assembled by the jig of the invention are used on a rolling-mill,

Referring more particularly to the accompanying drawings, the numeral 2 indicates generally a jig having a flat rectangular body-portion 4. An upwardly extending flange 6 extends the width of one end of the body-portion-4 and is provided with an aperture 1. The flange 6 is preferably integral with the body-portion 4 and adjacent a pair of opposed flanges 8 and 9 that are on the longitudinal sides of the body-portion 4. The flange 8 has one or more tapped apertures in while the inside surface of the flange 9 preferably tapers inwardly toward the flange 9. Centering means, such as a plug I2, having an aperture l4 in one end thereof is provided to be used in conjunction with the jig 2. The plug I2 is adapted to fit in the aperture 1 in the flange 6 so that the aperture l4 faces and is aligned with the body portion 4.

A hollow rectangular guide-holder l8, having a slightly tapered outer surface, is placed on the body-portion 4 between the flanges 8 and 9 and clamped in position by screws I6 which extend through the tapped apertures II! in the flange 8 and are adapted to bear upon the outer surface thereof, thereby forcing the guide-holder l8 against the flange 97 The exact construction of the flanges 8 and 9 is determined by the external construction of the guide-holder l8 which is to be placed between the flanges 8 and 9. The guide-holder I8 is adapted to receive two halfguides 29, whose height is such that they snugly V fit in the guide-holder IE but whose width is such that horizontal movement thereof in the guideholder is is'permitted. The half-guides 20 are so shaped that a longitudinal, substantially ovalshaped, aperture 22 is formed between them when they are placed together.

In order to provide space for circulating cool- .ing fluid around the half-guides 20, they are provided with flanges 24-. The flanges 24 extend around the circumference of the assembled halfguides 20 and preferably are adjacent the ends thereof. Cooling fluid is introduced to and exhausted from the space between the half-guides 20 and guide-holder M3 by means of apertures 26 in the guide-holder I8. I

The aperture M in the plug I2 is of the same shape as the roll-pass at which the guide-holder i8 is to be used, and is in the same position in relation to the guide-holder I8, due to the construction of the jig 2, as the roll pass of the rolling mill when the guide-holder i8 is at its position at the mill. By adapting the jig 2 to positively position the half-guides 29 in the guideholder [8 in the desired relation thereto before placing the guide-holder I8 in its fixed position at the roll-pass, a pre-alignment of the halfguides 21] and the roll-pass can be secured.

Means, such as a substantially oval-shaped rod 30, is passed through the aperture 22 and adapted to extend into the aperture 14, whereby the half-guides 26 are positively aligned with the aperture M. In order to hold these two elements in alignment, suitable means, such as shims 32, are inserted between the flanges 24 of the half-guides 20 and the guide-holders l8. Thus, by positively aligning the aperture 22 between the two half-guides 283 with the aperture !4 and securing the two half-guides in that position, the half-guides 29 and the guide-holder It can be moved as a unit without changing the position of the half-guides 20. After the aperture 22 has been aligned with the aperture I4 and the half-guides 20 secured in their given positions, the rod 30 is withdrawn from the apertures. Next the screws l6 are loosened and the guide-holder i8 is removed from the jig 2. Then as the guide-holder I8 has a definite relationship to the roll-pass it is secured in such position, and the aperture 22 is, without further adjustment, aligned with the roll-pass.

By use of the jig 2 the slow and inefllcient process of aligning the half-guides 20 with the roll-pass when the guide-holder is in its fixed position in relation thereto is no longer necessary.

It will be appreciated that the invention is not limited to the specific form illustrated and described but is actually defined in the appended claims.

I claim:

1. A jig for aligning half guides in guide holders comprising a body portion, an upwardly extending end flange having an aperture therethrough associated with said body-portion, a pair of opposed upwardly extending side flanges one of which is provided with tapped apertures therethrough associated with said body-portion, a centering plug having an aperture therein snugly received in said aperture in said end flange, screws engaged with said tapped apertures, the area defined by said flanges being adapted to receive a guide holder and two half-guides, and means cooperating with said 'apertured plug for positively aligning said half-guides with said aperture in said plug.

2. A jig for aligning half-guides in guide holders comprising a flat body portion, an upwardly extending end flange having an aperture therethrough associated with said body-portion, a pair of opposed upwardly extending side flanges carried by said body-portion, one of said side flanges having tapped apertures therethrough and the other of said side flanges having an inside surface tapering inwardly toward said end flange, a,

centering plug having a substantially oval-shaped aperture therein snugly received in said aperture in said end flange, screws engaged with said tapped apertures, the area defined by said flanges being adapted to receive a guide holder and two half-guides, said screws being adapted to adjustably clamp the guide holder in position, and means cooperating with said apertured plug for positively aligning said guides with said aperture in said plug, whereby said guides are so positioned in said holder that when said holder is placed in position at its roll-pass said half-guides are aligned therewith.

3. A jig for aligning half-guides in guide holders comprising a flat rectangular body portion, an upwardly extending end flange having an aperture therethrough associated with said bodyportion, a pair of opposed upwardly extending side flanges integral with said body portion, one of said side flanges being provided with two tapped apertures therethrough and the other an inside surface tapering toward said end flange, a centering plug having a substantially oval-shaped aperture therein at one end and a circular flange at the other end snugly received in said aperture in said end flange, screws engaged with said tapped apertures, the area defined by said flanges being adapted to receive a guide holder and two half-guides, said screws being adapted to adjustably clamp said guide holder in position, and a metal rod cooperating with said apertured plug for positively aligning the guide way formed by said half-guides with said aperture in said plug 7 whereby when said guide holder is positioned at its roll-pass said guide way is aligned therewith.

4. Apparatus for positioning half-guides in guide holders comprising, in combination, a substantially U-shaped jig provided with a bar having an aperture therethrough across one of the sides of said jig and tapped apertures extending through one of the arms of said jig, a centering member positioned in said aperture in said bar and provided with an aperture in one end thereof, screws engaged with said tapped apertures, the area defined by said flanges being adapted to receive a guide holder and two half-guides, said screws being adapted to adjustably clamp the guide holder in position, means for positively aligning said half-guides with said aperture in said centering member, and means for securing said half-guides in such aligned position.

JOHN A. SKOGSBERG. 

